Portable vulcanizing device.



L. C. LAWALL. PORTABLE VULCANIZING DEVICE.

APPLICATION FILED APR.28, 1914.

JL MQ SMO Patented May 25, 1915.

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Application filed April 28, 1914. fierial Ho. $353122.

To all whom it may concern: 2

'Bei howzn that 1, LE s CHARLES LAW- m, a citizen of the'United States, residing in Wayne township, in the county of Wayne, State of Indiana, have invented a new and useful Portable Vulcanizing Device, of which the following is a specification.

The object of my invention is to provide a device for vulcanizingrubber or rubber composition especially for repairing damaged articles such as punctured or cut pneumatic tires, tubes and casings and solid rubber tires. First, to make said repairs without necessitating the removal of the casing from the wheel or the wheel from the vehicle'; second, to do said vulcanizing without danger of damaging tire or vehicle by any flam or excessive heat of vulcanizer; third, to provide a vulcanizer that is automatic in the control of the heat; fourth, a vulcanizer that will not produce an excessive amount of smoke when gasolene or other similar fuel is used in it for producing the proper degree of heat; fifth, to make a vulcanizer that Y can be used for repairing both outer casings and inner tubes, simple and quick in operation yet compact '11 form, so it can be readily carried in a tool kit and used on the road as well as the garage.

Another object is to produce a vulcanizer that will be strong and durable in construction, positive, trolof heat, compact and neat in shape and whichcanbe sold at a comparatively. low price, and which may be easily and quickly manipulated to produce the requisite results at a minimum expense Other objects and specific advantages of my invention will appear from the ,specification, and the accompanying drawing as the description proceeds, the invention con-. sisting of the .novel features and arrangement of parts as hereinafter particularly de-. scribed and claimed.

l'-"attain these objects by the device illustrated in the accompanying drawings in- Figure 1 is a perspective view of the vulcanizer as mounted foruse on an outer casing. Fig. 2 is atop" plan view showing the swivel clamp fastened to an auto fenderfor work bench, with the foot plate snapped on; and a patch and inner tube between the foot plate and vulcanizer; inner tubes. Fig.

eflicient and automatic in conplate C. with slotted as used for repairing 3 is mean section on line-- 3 of Fig. 2 showing the foot of the clamp,

foot plate, tube, the vulcanizer and v1 the clamp screw. Fig. d is a perspective view of the vulcanizer. Fig. 5 is another section of the clamp showing in detail the swivel joint and foot. Fig. 6 shows a perspective of the clamp foot plate. Fig. shows [a modified form of clamp for usew-iththe vulcanizer when used for inner tubes only. Fig. 8 is a detail view of the slotted back surface of the swivel joint of the clamp.

In detail similar ietters and figures refer to similar parts throughout the 7 several views. 1

A practical embodiment of the invention comprises a heater or vuleanizing member A with curved base, to conform to the curvature of inflated tire casings, with suitable side, top and bottom projeptions, with uplhecentral plate right plates 12, 12, 12". 12 is-enlarged at the lowerend and contains a socket 11 into which fits the rounded point 10 of clamp screw D. lihe lower end of the vulcanizer is provided with a flange sufficiently higl'i to keep the fuel from being readily spilled or splashed from well 8, which is the fuel container proper. The clamp B is slotted adjacent the foot 2 to receive the wire spring 6 of foot plate. G. Clamp B also has a swivel rod 4 as shown in detail in Fig. 5. Through this rod passes pin 13, the outer ends of the pin fitting into slots 14, :14, 1-5, 15', Figs. 5, 7, and 8. Positioned about the rod in the countersunk recess in the clamp is a coil spring 16 against which fits washer 17 then pin 23 passing through the rod forholding the spring in lace. P Fig. 6 shows the construction of the foot lugs 18, 1s, 19, 19', into which fits spring 6. In making this detachablefoot plate the four-lugs may all be slotted at the same timeto receive the spring wire 6, after which the slots 20, 20 are riveted or hammered smaller to hold said spring wire firmly ,in place while the lugs 21, 21' are leftopen to allow the spring snap wire to work freely in said slots when B is snapped underneath foot 2 of clampv ,said wire and same enters slot 5 of clamp foot, 2, Fig. 5.

Fig. 7 shows a modified form of swivel clamp G with-curved stationary foot plate 22, but with swivel joint same G Fig. 1. v Y

In practical useain repairing an outer tire casing or tread the vehicle wheel is turned 10&

as on clamp.

- gasolene, the patch of tured part is wiped v to bring the part of the other similar fuel.

casing to be repaired Theaperture or slit cloth saturated with properly prepared rubber composition and of suitable slze to fill the cut or aperture is applied. Member A is then taken up and into its well 8 is poured a measured quantity of gasolene or The vulcanizer A is then placed over the patch and the foot of screw is placed into socket 11 while the foot of clamp B is placed on the opposite side of the tire against the rim and the clamp screw sufficiently turned to give a gentle pressure. The liquid is then ignited. The fuel measuring cup supplied with the outfit is of such size as to furnish enough gasolene to fill the well 8 and allow a minimum overflow into the basin above the well. The basin feeds the flame only until the vulcanizer is sufficientl' hot, after which it is kept at the right temperature by feeding only from the small opening of the well 8 thereby restricting the flame practically within the confines of'the fuel box, without waste and avoiding the annoying and dangerous flaring up of flames and excessive smoking that is ento a vertical plane. is wiped clean with a countered in other devices of somewhat similar construction.- When the fuel has become consumed the patch will be found vulcanized ,to the requlred degree.

To repair an inner tube, foot plate C is snapped on the foot of clamp B. The swivel rod 4 of the clamp B is clamped to the work bench or auto running board and the clamp B swiveled to the upright position with the foot plate in horizontal position, the inner tube is laid over the clean and a suitable patch placed, and the vulcanizer is charged with fuel and placed as mentioned in the foregoing for outer casings; after which the clamp is turned one fourth turn on the swivel rod as. shown in Fig.

foot plate, the punc- 2 and the fuel I is ignited and left to burn out, which completes the job the same as in the foregoing in regard to vulcanizing casings.

I am aware that prior to my invention portable vulcanizing devices have been made, I therefore do not-claim such atom-t bination broadly, but

I claim as new and desire to secure by Letters Patent of the United States.

l. A vulcanizing devicecomprisin a vulcanizingplate, heat transmitting ri -plates attached to-the rear-side thereof, a flange extending back from the margins of the vulcanizing face plate to form therewith an open receptacle terminating at the bottom in a narrow deep well having a constricted mouth in combination with a wide shallow overflow basin at the mouth of the well; a central pressure swiveling clamp and a foot plate as herein set forth and described.

2. Awulca'nizing device having in combination a central pressure clamp with a swiveling joint comprising a clamp bar havmg a perforation and cross rod passing through the perforation, a spring and a locking pin on said rod so constructed as to allow the swivel joint to unlock and allow the clamp to turn from the upright to the horizontal position and again lock and vice versa as herein .set forth.

3. A vulcanizer having in combination a liquid ,fuel heated member, a swiveling clamp having a slot adjacent the foot and a detachable foot plate with wire snap spring fitting the said slot at the foot of the swivel clamp as shown and herein described.

In testimony whereof I have signed my name to the specification in the presence of two subscribing witnesses.

grooves, a swivel LEWIS CHARLES LAWALL. 

